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TLS Online TPP Program

#Question id: 1121

Which of the following provides the best evidence that cell-signaling pathways evolved early in the history of life?

#SCPH01 Biochemistry

  1. Cell-signaling pathways are seen in "primitive" cells such as bacteria and yeast.

  2. Bacteria and yeast cells signal each other in a process called quorum sensing.

  3. Signal transduction molecules identified in distantly related organisms are similar.

  4. Most signals in all types of cells are received by cell surface receptors.

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TLS Online TPP Program

#Question id: 11066

#I Life Science/ Life Sciences Group – I-V

A 22-year-old woman has a pulmonary compliance of 0.2 L/cm H2O and a pleural pressure of −4 cm H2O. What is the pleural pressure (in cm H2O) when the woman inhales 1.0 L of air?
TLS Online TPP Program

#Question id: 4338

#SCPH05 I Biotechnology

Altering patterns of gene expression in prokaryotes would most likely serve an organism's survival by __.
TLS Online TPP Program

#Question id: 11139

#I Life Science/ Life Sciences Group – I-V

In a simple synapse, neurotransmitter chemicals are released by ________.
TLS Online TPP Program

#Question id: 19196

#SCPH28 | Zoology

What kind of physical changes can be detected in biosensor?
A. Production of gas such as oxygen, hydrogen, etc.
B.  Change in mass of the biological component
C. Light produced or absorbed in reaction
Which of the following above statements are correct?
TLS Online TPP Program

#Question id: 1551

#SCPH01 Biochemistry

function of CR2